What is NDT Level 1, 2 & 3 ? What is Roles & Responsibilities of Level 1, 2 & 3 as per SNT-TC-1A Edition 2020

There are three basic levels of qualification. The employer may sub-divide these levels for situations where additional levels are deemed necessary for specific skills and responsibilities.

While in the process of being initially trained, qualified, and certified, an individual should be considered a trainee. A trainee should work with a certified individual. The trainee should not independently conduct, interpret, evaluate, or report the results of any NDT test.

The recommended technical knowledge and skill sets for the three basic levels of qualification are as follows:

NDT Level 1 

An NDT Level I individual should have sufficient technical knowledge and skills to be qualified to properly perform specific calibrations, specific NDT, and specific evaluations for acceptance or rejection determinations according to written instructions and to record results. 

The NDT Level I should receive the necessary instruction and supervision from a certified NDT Level II or III individual.

NDT Level 2

An NDT Level II individuai should have sufficient technical knowledge and skills to be qualified to set up and calibrate equipment and to interpret and evaluate results with respect to applicable codes, standards, and specifications. 

The NDT Level II should be thoroughly familiar with the scope and limitations of the methods for which qualified and should exercise assigned responsibility for on-the-job training and guidance of trainees and NDT Level I personnel. 

The NDT Level II should be able to organize and report the results of NDT tests.

NDT Level 3

NDT Level III. An NDT Level III individual should have sufficient technical knowledge and skills to be capable of developing, qualifying, and approving procedures, establishing and approving techniques, interpreting codes, standards, specifications, and procedures; and designating the particular NDT methods, techniques, and procedures to be used.

 

The NDT Level III should be responsible for the NDT operations for which qualified and assigned and should be capable of interpreting and evaluating results in terms of existing codes, standards, and specifications. 

The NDT Level III should have sufficient practical background in applicable materials, fabrication, and product technology to establish techniques and to assist in establishing acceptance criteria when none are otherwise available. 

The NDT Level III should have general familiarity with other appropriate NDT methods, as demonstrated by an ASNT Level III Basic examination or other means. 

The NDT Level III, in the methods in which certified, should have sufficient technical knowledge and skills to be capable of training and examining NDT Level I, II, and III personnel for certification in those methods.